Advice please re: public supervised visitation + quarantine

Long story short my ex only has supervised visitation in a public place for 2 hours every other weekend. We are under stay at home orders here and all nonessential businesses and public parks are closed.

We’ve canceled the last few visits because I don’t really see away around it and he’s considered an “essential” worker so he’s exposed to many people each day. Our kids are teens so requests that they video chat have been denied by them as they don’t like him. He isn’t allowed any private contact with them.

Because of that, he’s now insisting on exercising visitation tomorrow. He said we’ll meet on a sidewalk somewhere and they can go for a walk with him.

The kids are refusing, one has an immunodeficiency disorder so she’s especially prone to this illness. She said walking, in the cold, with a mask, 6 feet away from him sounds like the dumbest thing ever.

Plus it’s a risk to me, and my baby at home, as the court appointed supervisor is unwilling to take the risk right now so I would have to supervise the visit and my SO would have to care for the baby which has NOT gone well lately as baby is having some severe separation anxiety.

I can’t contact my attorney before our scheduled visit tomorrow so I’d like some input on how you guys would handle this. I’m fully aware that the pandemic is not an excuse not to exercise custodial rights but we’re talking about public and supervised custody, not normal custody exchanges. I told him once before that the kids are old enough (14 and 15) to go without seeing him and not forget him so it seemed more responsible for us to get through this pandemic and then resume visitation.

Thanks all!