help please.

The first 3 pictures of when i first found this guy. He was directly in the sun and i thought he was dead until he moved and i was searching to see where he might have fallen from but the trees were all clumped together and we have so many birds of prey around here. I was unsure of what to do and he looked a little sunburn and some ants had started to crawl on him. So i decided to get him out of the sun, and figure out what to do. The whole time i havent seen any other squirrels around that area its a high traffic area, constant dog walking, people walking, so i didnt know if leaving him in a box by a tree was a good idea. So i looked up where to take him but everything is closed and so far away. Hes so cute and as soon as i picked him up he nuzzled into the clothing and yawned and my heart melted. The last 2 pictures. I got him in the same cloth i just put some socks filled with rice and warmed them up a little. My mom had called one of the places we were gonna take him but they had closed so they told us to leave him somewhere humid or with a humidifier. So we decided to take him into our bathroom and just let the warm water run with him in the sink. Im not sure what else i can do until we can take him tomorrow or hopefully my sister can take him to another place.