The Snowski does leave tracks. Given the combined weight of Sam and Chino, the tracks are deeper than usual. More snow is predicted for the next 7 hours or so.
Chino and Sam both have the Outdoors skill at rating 2. Some
Tracking rolls:
Sam:
0 hits
Chino:
1 hit
The tracks will certainly be softened by additional snow - and the wind may help erode them too - but you can't say for sure if they will be eliminated completely. Chino thinks that Sam could drag a tree branch or something behind them to help break down the ridges some more.
Smashing Blow applies to "a barrier or other static structure". SR5 says that vehicles are not barriers ("People and vehicles have Body and Armor, while barriers have Structure and Armor." p. 197), so Smashing Blow would not apply.
If it makes you feel better, the aspen tree appears to have applied Rooting to the drone already. (Has the Rooting power not made the leap to SR5 yet? Okay, the punchline can be "Counterstrike" instead.) Between the sudden stop and being engulfed in flames, the prospects for the drone are dim.