wilton ladder 5 on 91 south today?

[FFFORD 27]

i was coming down 91 South today about 1 pm and saw a truck that i thought said wilton engine or ladder 5. definitely a ladder truck. i was just prior to the entrance for 15 south and they exited one exit before me. anyone know why they were up there? i tried saying hi with a wave out the window, not sure if they saw me.

[IzzyEng4 427]

May be coming from Firematic in Rocky Hill. As to why they got off early, got me.