1994 ford explorer got hung up in the snow today because of a crazy storm last night....

[richard t]

...When I got out of the s? 1994 ford explorer got hung up in the snow today because of a crazy storm last night. When I got out of the snow bank I had no control of my truck and it seemed like the back passenger wheel was locked up. My parking brake light has been on since I got hung up. The wheel seemed to free up and I was able to drive around the block fine. It stopped and everything but the light won't go off and the brake seems squishy and goes all the way to the floor. Should I take this in or what should I check